CVE-2026-3096Network attack vector

Phishing via opener-enabled external links

Published Sep 10, 2026 · Updated Sep 10, 2026

Reverse tabnabbing in affected WSO2 API Control Plane and API Manager portals allows remote attackers to redirect users to phishing pages. External-link controls open attacker-chosen destinations in a new tab without consistently severing window.opener, so the destination can rewrite the trusted originating window. A user must click the malicious link; the resulting trusted-context redirect supports credential theft and unauthorized actions but does not interrupt service.

CVSS severity4.7
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Reverse tabnabbing in affected WSO2 API Control Plane and API Manager portals allows remote attackers to redirect users to phishing pages. External-link controls open attacker-chosen destinations in a new tab without consistently severing window.opener, so the destination can rewrite the trusted originating window. A user must click the malicious link; the resulting trusted-context redirect supports credential theft and unauthorized actions but does not interrupt service.

The record

CVE
CVE-2026-3096
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
WSO2
Product
WSO2 API Control Plane
Classifications
T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.5.0 <4.5.0.54
  2. Affected versionversion=4.6.0 <4.6.0.18

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WSO2 · WSO2 API Control Planeversion=4.5.0 <4.5.0.54; version=4.6.0 <4.6.0.18
WSO2 · WSO2 API Managerversion=3.2.0 <3.2.0.468; version=3.2.1 <3.2.1.87; version=4.1.0 <4.1.0.252; version=4.2.0 <4.2.0.192; version=4.3.0 <4.3.0.103; version=4.4.0 <4.4.0.67; version=4.5.0 <4.5.0.52; version=4.6.0 <4.6.0.16

Published CVSS scores

4.7WSO2CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1204.001User Execution Malicious Link

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo